Seychelles - Climate

Although the Seychelles Islands lie close to the equator, their maritime
situation results in coastal temperatures that are fairly constant at
about 27°
C
(81°
F
) throughout the year. At higher altitudes, temperatures are lower,
especially at night. Mean annual rainfall at sea level on Mahé is
236 cm (93 in); in the mountains there may be as much as 356 cm (140 in)
a year. On the southwestern coral islands, rainfall is much lower,
averaging about 50 cm (20 in) a year on Aldabra. May to October is the
relatively dry sunny season; in this period, the southeast monsoon winds
bring brief showers every two or three days. The northwest monsoon
arrives in December and continues until March, bringing frequent and
heavy rain. Humidity is high, especially in the coastal areas.